v2.3.0.11
Securities Available For Sale (Schedule Of Proceeds Of Sale Of Securities Available For Sale) (Details) (USD $)
In Millions
3 Months Ended 6 Months Ended
Jun. 30, 2011
Jun. 30, 2011
Securities Available For Sale    
Gross realized gains $ 84 $ 96
Gross realized losses 2 2
Proceeds of sales of debt securities available for sale $ 7,021 $ 13,142